Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 14, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 29, 1998, 3:43 PM CST for Chisago County, Isanti County, Minnesota. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 29, 1998, 3:43 PM CST (21:43 UTC)
- Expired
- Mar 29, 1998, 4:30 PM CST
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Chisago County, MN, Isanti County, MN
The radar
The Minneapolis radar (KMPX), 84 km from the middle of the area, began a volume at 21:46 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 29, 3:15 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.7 hours before the alert went out and 85 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 551 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
658
WUUS1 KMSP 292142 RRA
SVRMSP
MNC025-059-292230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
343 PM CST SUN MAR 29 1998
* SEVERE THUNDERSTORM WARNING FOR
CHISAGO COUNTY - EAST CENTRAL MINNESOTA
ISANTI COUNTY - EAST CENTRAL MINNESOTA
* UNTIL 430 PM CST
* SOME LOCATIONS AFFECTED
CAMBRIDGE
CENTER CITY
NORTH BRANCH
ISANTI
* AT 340 PM CDT DOPPLER RADAR INDICATED SEVERE STORMS JUST WEST OF
CENTER CITY AND NEAR CAMBRIDGE OR ABOUT 20 MILES NORTH OF ST.
PAUL. THE STORMS WERE MOVING NORTHEAST AT 35 MPH.
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
MBKThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 2:27 PM CST | Severe Thunderstorm Warning | MPX | Nicollet, Sibley | 48 min |
| Mar 29, 2:43 PM CST | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Wright | 47 min |
| Mar 29, 2:47 PM CST | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 48 min |
| Mar 29, 2:52 PM CST | Severe Thunderstorm Warning | MPX | Carver | 48 min |
| Mar 29, 2:52 PM CST | Tornado Warning | MPX | Scott | 38 min |
| Mar 29, 3:00 PM CST | Tornado Warning | MPX | Freeborn | 35 min |
| Mar 29, 3:07 PM CST | Severe Thunderstorm Warning | MPX | Wright | 33 min |
| Mar 29, 3:12 PM CST | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey | 63 min |
| Mar 29, 3:12 PM CST | Severe Thunderstorm Warning | MPX | Anoka | 63 min |
| Mar 29, 3:18 PM CST | Severe Thunderstorm Warning | MPX | Anoka, Sherburne | 42 min |
| Mar 29, 3:23 PM CST | Severe Thunderstorm Warning | MPX | Freeborn, Steele | 37 min |
| Mar 29, 3:32 PM CST | Severe Thunderstorm Warning | MPX | Dakota, Washington | 63 min |
| Mar 29, 3:32 PM CST | Severe Thunderstorm Warning | MPX | Goodhue | 63 min |
| Mar 29, 3:39 PM CST | Severe Thunderstorm Warning | MPX | Carver, Sibley | 36 min |
| Mar 29, 4:21 PM CST | Tornado Warning | MPX | Brown, Watonwan | 64 min |
| Mar 29, 4:28 PM CST | Severe Thunderstorm Warning | MPX | Scott | 47 min |
| Mar 29, 4:56 PM CST | Tornado Warning | MPX | Blue Earth, Nicollet | 59 min |
| Mar 29, 5:23 PM CST | Tornado Warning | MPX | Le Sueur | 52 min |
| Mar 29, 5:47 PM CST | Tornado Warning | MPX | Blue Earth, Nicollet | 48 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.